Jupiter Mahadasha, Rahu Antardasha (Guru–Rahu)

The Rahu antardasha is the ninth of the nine sub-periods inside the Jupiter mahadasha, and the last of them — it closes the Jupiter mahadasha, which gives way to the Saturn mahadasha. 16 × 18 ÷ 120 makes the Jupiter–Rahu sub-period 2 years 4 months 24 days on the classical year of twelve thirty-day months, which is how the texts state it, or 877 days on the solar year of 365.2425 days that the dasha calculator uses.

Rahu’s turn in the Jupiter mahadasha comes only after Jupiter, Saturn, Mercury, Ketu, Venus, the Sun, the Moon and Mars have run, which takes 13 years 7 months 6 days. Nothing of the Jupiter mahadasha is left once the Jupiter–Rahu sub-period ends.

Rahu’s 18 years make every Rahu antardasha 18/120 of the mahadasha containing it, so inside Jupiter’s 16 years the Jupiter–Rahu sub-period is the third-longest of the nine.

The Nine Pratyantardashas of Jupiter–Rahu

A pratyantardasha of Jupiter–Rahu is 16 × 18 × its own lord’s years ÷ 14,400, and the nine run in cycle order starting from Rahu. Venus’s is the longest inside Jupiter–Rahu at 144 days and the Sun’s the shortest at 43 days, on the classical year and rounded to the day.

How Jupiter and Rahu Stand to Each Other

Rahu’s row in the friendship lists counts Jupiter neutral. Jupiter’s row names no node, so the other direction of the Jupiter–Rahu relationship has no entry, and this page does not supply one. The nodes have no row in the seven-graha table that kundli matching uses; the node’s own entry is the one printed on its planet page.

Rahu owns no sign in the standard scheme, so the Jupiter–Rahu sub-period has no fixed distance between lordships. What stands in for it is the node’s dispositor — the lord of the sign Rahu occupies at birth — which differs from chart to chart.

The Same Pair the Other Way Round: Rahu–Jupiter

16 × 18 equals 18 × 16, so the Jupiter antardasha of the Rahu mahadasha is exactly as long as Jupiter–Rahu: 2 years 4 months 24 days. Nothing else about Rahu–Jupiter matches. It is the second sub-period of Rahu’s 18 years rather than the ninth of Jupiter’s 16; it opens after 2 years 8 months 12 days of the Rahu mahadasha, against 13 years 7 months 6 days here; and its pratyantars start from Jupiter instead of Rahu.

What the Texts Assign to Jupiter and Rahu

The karaka list the tables give Jupiter, the mahadasha lord, is children, teachers and gurus, higher learning and dharma; for Rahu, the lord of the Jupiter–Rahu sub-period, it is foreign lands and foreigners, technology, aviation and politics. Parashari practice reads the sub-period through the houses each of the two owns and occupies in the birth chart (for Rahu, which owns none, the house it occupies and the lord of its sign), and through where Rahu stands counted from Jupiter there. None of that is a forecast, and this page makes none: without a chart, Jupiter–Rahu is a length and a position, and the 2 years 4 months 24 days above is the whole of what can be said about it in general.

A birth with the Moon in Punarvasu, Vishakha or Purva Bhadrapada opens life inside the Jupiter mahadasha itself, part-way through, and whether the Jupiter–Rahu sub-period is still ahead depends on how far the Moon had gone into the nakshatra. For a birth in Ardra, Swati or Shatabhisha, the Rahu mahadasha comes first, and the Jupiter mahadasha is the next one.

The Other Sub-Periods of the Jupiter Mahadasha

The full table for the Jupiter mahadasha, with where each sub-period opens and closes, is on the Jupiter mahadasha page. How the Jupiter mahadasha is read as a whole is in our Jupiter mahadasha article, and the system itself in Vimshottari dasha explained. This page in Hindi: गुरु महादशा में राहु अंतर्दशा.